Temperature or strain induced adjustable-chirp characteristics of uniform fibre grating with tapered metal coating
Liu Yan(刘艳)†, Li Bin(李彬), Zheng Kai(郑凯), Tan Zhong-Wei(谭中伟), Chen Yong(陈勇), Wang Yan Hua(王燕花), Ren Wen-Hua(任文华), and Jian Shui-Sheng(简水生)
Institute of Lightwave Technology, Key Laboratory of All Optical Network and Advanced Telecommunication Network of EMC, Beijing Jiaotong University, Beijing 100044, China
Abstract Temperature and strain characteristics of uniform fibre grating with tapered metal coatings have been analysed theoretically, by which adjustable chirp characteristics of such gratings are shown. Electroplating is adopted to fabricate such gratings, and the tapered metal coating is obtained by gradually drawing the fibre grating out of the solution during the process of electroplating. The gradually changing cross-sectional area of the metal coating is calculated by a newly suggested numerical method. By combining the theoretical and numerical simulation analyses, the gratings' characteristics are given at various temperatures and strains. The results obtained using such a method are also testified by experiments.
Received: 19 August 2006
Revised: 25 January 2007
Accepted manuscript online:
Fund: Project
supported by the Paper Fund of Beijing Jiaotong University, China
(Grant No~2005RC033) and the National
Natural Science Foundation of China (Grant No~60477017).
Cite this article:
Liu Yan(刘艳), Li Bin(李彬), Zheng Kai(郑凯), Tan Zhong-Wei(谭中伟), Chen Yong(陈勇), Wang Yan Hua(王燕花), Ren Wen-Hua(任文华), and Jian Shui-Sheng(简水生) Temperature or strain induced adjustable-chirp characteristics of uniform fibre grating with tapered metal coating 2007 Chinese Physics 16 1694
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